The Starbucks Gray/Black Gunmetal Embossed Siren Stainless Steel Cold Cup Tumbler is a collectible advertising item from the popular coffee and tea chain. This 16oz tumbler features the signature Starbucks logo and siren design, making it a must-have for coffee and tea enthusiasts. The sleek gray gunmetal color adds a touch of sophistication to the tumbler, making it a stylish and functional addition to any Starbucks lover's collection.